Thyssenkrupp Steel Ag

Nippon Steel Corporation

Thyssen Krupp Ag

Thyssenkrupp Steel Europe Ag

Thyssenkrupp Electrical Steel Gmbh

Ludger Lahn

Kazutoshi Takeda

Masaru Takahashi

Shuichi Yamazaki

Ingo Rogner

Hartmut Wiggers

Eberhard Sowka

Tobias Lewe

Andreas Ploch

Klaus Günther

Heiner Schrapers

Carsten Schepers

Koji Kanehashi

Regis Lemaitre

Hirohiko Sato

Christof Holzapfel

Eyup Duman

Régis Lemaitre

Régis LEMAîTRE

Mihaela Teodorescu

Christian Hecht

Vanessa Zeuner

Jasmina Kratochvil

Régis LEMAÎTRE

Andreas Allwardt

Klaus Guenther

Gerhard Inden

Thierry Belgrand

Thorsten Krenke

Chaoyong Wang

A solution for forming an insulation coating of grain-oriented electrical steel sheet includes an aqueous solution prepared by mixing a phosphate solution and colloidal silica. Chromium is not added to the aqueous solution. The colloidal silica includes silica particles surface-modified by an aluminate or is prepared by adding an aluminate to colloidal silica such as conventional colloidal silica.

Solution for forming insulation coating and grain-oriented electrical steel sheet

A method for producing high-quality grain oriented magnetic steel sheet utilizes a steel alloy with (in wt %) Si: 2.5-4.0%, C: 0.02-0.10%, Al: 0.01-0.065%, N: 0.003-0.015%. The method utilizes an operational sequence whose individual steps (secondary metallurgical treatment of the molten metal, continuous casting of the molten metal into a strand, dividing of the strand into thin slabs, heating of the thin slabs, continuous hot rolling of the thin slabs into hot strip, cooling of the hot strip, coiling of the hot strip, cold rolling of the hot strip into cold strip, recrystallization and decarburization annealing of the cold strip, application of an annealing separator, final annealing of the recrystallization and decarburization annealed cold strip to form a Goss texture) are harmonized with one another, so that a magnetic steel sheet with optimized electromagnetic properties is obtained using conventional apparatus.

Method for producing grain oriented magnetic steel strip

A method, which makes it possible to economically produce high-quality grain oriented magnetic steel sheet, utilizes a steel alloy with (in wt %) Si: 2.5-4.0%, C: 0.01-0.10 %, Mn: 0.02-0.50%, S and Se in contents, whose total amounts to 0.005-0.04%. The method utilizes an operational sequence whose individual routine steps (secondary metallurgical treatment of the molten metal in a vacuum-or ladle facility, continuous casting of the molten metal into a strand, dividing of the strand, heating in a facility standing inline, continuous hot rolling in a multi-stand hot rolling mill standing inline, cooling, coiling, cold rolling, recrystallization and decarburization annealing, application of an annealing separator, final annealing to form a Goss texture) are harmonized with one another, so that a magnetic steel sheet with optimized electromagnetic properties is obtained using conventional apparatus.

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Moers, Germany

Ludger Lahn